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Improve error reporting in format()

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Clarify invalid format conversion type error message and add hint.

Author: Jim Nasby
This commit is contained in:
Teodor Sigaev
2016-02-11 18:11:11 +03:00
parent a455878d99
commit 07d25a964b
2 changed files with 15 additions and 9 deletions
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15
src/backend/utils/adt/varlena.c
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@@ -4788,7 +4788,8 @@ text_reverse(PG_FUNCTION_ARGS)
if (++(ptr) >= (end_ptr)) \
ereport(ERROR, \
(errcode(ERRCODE_INVALID_PARAMETER_VALUE), \
errmsg("unterminated format specifier"))); \
errmsg("unterminated format() type specifier"), \
errhint("For a single \"%%\" use \"%%%%\"."))); \
} while (0)
/*
@@ -4920,8 +4921,9 @@ text_format(PG_FUNCTION_ARGS)
if (strchr("sIL", *cp) == NULL)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("unrecognized conversion type specifier \"%c\"",
*cp)));
errmsg("unrecognized format() type specifier \"%c\"",
*cp),
errhint("For a single \"%%\" use \"%%%%\".")));
/* If indirect width was specified, get its value */
if (widthpos >= 0)
@@ -4932,7 +4934,7 @@ text_format(PG_FUNCTION_ARGS)
if (arg >= nargs)
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("too few arguments for format")));
errmsg("too few arguments for format()")));
/* Get the value and type of the selected argument */
if (!funcvariadic)
@@ -5040,8 +5042,9 @@ text_format(PG_FUNCTION_ARGS)
/* should not get here, because of previous check */
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("unrecognized conversion type specifier \"%c\"",
*cp)));
errmsg("unrecognized format() type specifier \"%c\"",
*cp),
errhint("For a single \"%%\" use \"%%%%\".")));
break;
}
}